Effects of Heat-Killed Levilactobacillus brevis KB290 in Combination with ß-Carotene on Influenza Virus Infection in Healthy Adults: A Randomized Controlled Trial.
Nutrients
; 13(9)2021 Aug 30.
Article
em En
| MEDLINE
| ID: mdl-34578917
ABSTRACT
Influenza, a seasonal acute respiratory disease caused primarily by the influenza virus A or B, manifests with severe symptoms leading to considerable morbidity and mortality and is a major concern worldwide. Therefore, effective preventive measures against it are required. The aim of this trial was to evaluate the preventive effects of heat-killed Levilactobacillus brevis KB290 (KB290) in combination with ß-carotene (ßC) on influenza virus infections in healthy Japanese subjects aged between 20 and 59 y throughout the winter season. We performed a randomized, double-blind, placebo-controlled, parallel-group trial from 16 December 2019 to 8 March 2020, comparing KB290 + ßC beverage with placebo beverage. The primary endpoint was the incidence of influenza based on a doctor's certificate. The incidence of influenza was not significantly different between the two groups. However, the subgroup analysis showed a significant difference between the two groups (influenza incidence the KB290 + ßC group 1.9%, and the placebo group 3.9%) in the subgroup of subjects aged Ë40 y, but not in the subgroup of subjects aged ≥40 y. The results of this trial suggest that the combination of KB290 and ßC might be a possible candidate supplement for protection against the seasonal influenza virus infection in humans aged <40 y, although further clinical studies are needed to confirm the concrete preventive effect of this combination on influenza.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Contexto em Saúde:
1_ASSA2030
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2_ODS3
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4_TD
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6_ODS3_enfermedades_notrasmisibles
Base de dados:
MEDLINE
Assunto principal:
Beta Caroteno
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Levilactobacillus brevis
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Influenza Humana
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Provitaminas
Tipo de estudo:
Clinical_trials
Limite:
Adult
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Female
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Humans
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Male
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Middle aged
País/Região como assunto:
Asia
Idioma:
En
Revista:
Nutrients
Ano de publicação:
2021
Tipo de documento:
Article